Temperature controller with multi-stage circuit protection function

Abstract

The utility model relates to the field of temperature controllers, and discloses a temperature controller with a multi-stage circuit protection function, which comprises a base and a base, an L-pole conductive column is connected onto the base, a socket is connected to the bottom end of the L-pole conductive column, a buckle is arranged on the socket, a clamping block is connected onto the buckle, a plug is connected onto the socket, and the plug is connected with a power supply. The plug is connected with a sheet-shaped bimetallic strip, the sheet-shaped bimetallic strip is connected with an L-pole terminal, the base is connected with an N-pole conductive plate, the N-pole conductive plate is connected with an N-pole action reed, the N-pole action reed is connected with an N-pole terminal, a fixed plate is arranged above the base, the fixed plate is provided with a bimetallic strip, and the bimetallic strip is connected with a metal wire. The bimetallic sheet is connected with a push rod, and the fixed plate is connected with a fuse. According to the utility model, through the connection between the L-pole conductive column and the socket, the connection between the plug and the sheet-shaped bimetallic strip and the like, and the connection between the N-pole conductive plate and the N-pole action reed and the like, each part can be disassembled, replaced and maintained.

Description

A temperature controller with multi-level circuit protection function Technical Field

[0001] This utility model relates to the field of temperature controllers, and in particular to a temperature controller with multi-level circuit protection function. Background Technology

[0002] A thermostat is a series of automatic control components that can produce certain special effects by undergoing physical deformation inside the switch according to the temperature changes of the working environment, thereby generating a conduction or disconnection action. It is also called a temperature control switch, temperature protector, temperature controller, or simply thermostat.

[0003] In existing thermostats, components may become loose or have poor contact during long-term use, affecting the normal operation of the thermostat. Furthermore, because the connections between components are relatively fixed, they are not easy to disassemble, replace, or repair.

[0004] Therefore, those skilled in the art have provided a temperature controller with multi-level circuit protection to solve the problems mentioned in the background art. Summary of the Invention

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a temperature controller with multi-level circuit protection. The connection between the components is stable and reliable, such as the connection between the L-pole conductive post and the socket, the plug and the sheet bimetallic strip, the connection between the plug and the socket through buckles, blocks and rubber rings, and the connection between the N-pole conductive plate and the N-pole actuating spring. This allows for the disassembly, replacement and maintenance of each component.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A thermostat with multi-level circuit protection includes a base and a subbase. An L-pole conductive post is connected to the base, and a socket is connected to the bottom of the L-pole conductive post. The socket has a slot and a latch. A latching block is connected to the latch. A plug is connected to the socket, and a pin is connected to the plug. A sheet-like bimetallic strip is connected to the plug, and an L-pole terminal is connected to the sheet-like bimetallic strip. An N-pole conductive plate is connected to the base, and a rectangular plate is connected to the bottom of the N-pole conductive plate. A spring is connected to the rectangular plate, and a clamping block is connected to one end of the spring. An N-pole actuating spring is connected to the N-pole conductive plate, and an N-pole terminal is connected to the N-pole actuating spring. A fixing plate is provided above the subbase, and connecting plates are connected to both ends of the fixing plate. A second bolt is provided on the connecting plate. A bimetallic strip is provided on the fixing plate, and a top rod is connected to the bimetallic strip. An arc-shaped bend is connected to the fixing plate, and a fuse is connected to the arc-shaped bend.

[0008] The above technical solutions allow for the disassembly, replacement, and repair of various components.

[0009] Furthermore, the L-terminal conductive post is fixedly connected to the base, the socket is fixedly connected to the bottom end of the L-terminal conductive post, the plug is movably connected to the socket, the pin is fixedly connected to the plug, the plug is fixedly connected to one end of the sheet bimetallic strip, and one end of the L-terminal pin is movably in contact with the other end of the sheet bimetallic strip.

[0010] The above technical solution ensures a stable and reliable connection of the L-polar circuit, and the bimetallic strip can act promptly according to temperature changes to control the on / off state of the L-polar circuit.

[0011] Furthermore, the socket and the plug are respectively provided with the slot, the buckle is fixedly connected to the socket, the locking block is movably connected to the socket and the plug respectively, and a rubber ring is fixedly provided on the locking block, and the rubber ring is movably connected to the buckle;

[0012] The above technical solution increases the friction between the locking block and the buckle, making the connection between the plug and the socket more secure and preventing loosening during use.

[0013] Furthermore, the N-pole conductive plate is fixedly connected to the base, one end of the N-pole actuating spring is movably connected to the N-pole conductive plate, and the other end of the N-pole actuating spring is in movable contact with the N-pole terminal.

[0014] Through the above technical solution, the N-pole actuating spring can deform when the temperature or current changes, thereby controlling the on / off state of the N-pole circuit and achieving circuit protection.

[0015] Furthermore, the rectangular plate is fixedly connected to the N-pole conductive plate, and the rectangular plate is provided with a sliding groove and a movable groove respectively. The spring is disposed in the movable groove, one end of the spring is fixedly connected to the rectangular plate, the clamping block is fixedly connected to the other end of the spring, and the clamping block is slidably connected to the rectangular plate.

[0016] Through the above technical solution, the spring and clamping block can clamp and fix the wires of the N-pole circuit, prevent the wires from loosening, and ensure the stability of the circuit connection.

[0017] Furthermore, a snap-fit ​​block is fixedly connected to the bottom end of the fixed plate, the snap-fit ​​block is movably connected to the double gold sheet, the double gold sheet is fixedly connected to one end of the top rod, and the other end of the top rod is movably in contact with the N-pole actuating spring.

[0018] Through the above technical solution, the double gold sheet deforms when the temperature changes, and pushes the N-pole actuating spring through the push rod to control the N-pole circuit.

[0019] Furthermore, the arc-shaped bend is fixedly connected to the fixed plate, the fuse is movably connected to the arc-shaped bend, one end of the fuse is movably connected to the N-terminal, the connecting plate is fixedly connected to the fixed plate, and the second bolt is threadedly connected to the connecting plate and the base respectively.

[0020] Through the above technical solution, the fuse serves as an overload protection device for the circuit. When the current in the circuit is too high, the fuse melts, cutting off the circuit and protecting the equipment.

[0021] Furthermore, a first bolt is threaded onto the base, the first bolt is threaded onto the base, and a contact port is provided on one side of the base;

[0022] Through the above technical solution, the setting of the first bolt makes the base and the base firmly connected, and the contact port facilitates the connection of external wires and the temperature controller.

[0023] This utility model has the following beneficial effects:

[0024] 1. The present invention proposes a temperature controller with multi-level circuit protection function. The connection between the components is stable and reliable, such as the connection between the L-pole conductive post and the socket, the plug and the sheet bimetallic strip, the connection between the plug and the socket through buckles, blocks and rubber rings, and the connection between the N-pole conductive plate and the N-pole actuating spring, etc., which allows the components to be disassembled, replaced and repaired.

[0025] 2. The present invention proposes a temperature controller with multi-level circuit protection function. By setting up a bimetallic strip, an N-pole actuating spring, and a fuse, it realizes multi-level circuit protection function. The bimetallic strip can control the on and off of the L-pole circuit according to temperature changes, the N-pole actuating spring can control the on and off of the N-pole circuit according to temperature or current changes, and the fuse melts in time when the circuit current is too large, cutting off the circuit, thus protecting the safety of the circuit and equipment in all aspects. Attached Figure Description

[0026] Figure 1 is an isometric view of a temperature controller with multi-level circuit protection function proposed in this utility model;

[0027] Figure 2 is a bottom schematic diagram of a temperature controller with multi-level circuit protection function proposed in this utility model;

[0028] Figure 3 is a partial cross-sectional view of a temperature controller with multi-level circuit protection function proposed in this utility model;

[0029] Figure 4 is an internal structure diagram of a temperature controller with multi-level circuit protection function proposed in this utility model;

[0030] Figure 5 is a schematic diagram of the mechanical structure of the L-pole circuit of a temperature controller with multi-level circuit protection function proposed in this utility model.

[0031] Figure 6 is a schematic diagram of the N-pole circuit structure of a temperature controller with multi-level circuit protection function proposed in this utility model.

[0032] Legend:

[0033] 1. Base; 2. Base plate; 3. First bolt; 4. Contact port; 5. L-pole conductive post; 6. Socket; 7. Slot; 8. Snap-fit; 9. Sheet bimetallic strip; 10. Plug; 11. Pin; 12. Locking block; 13. Rubber ring; 14. L-pole terminal; 15. N-pole conductive plate; 16. Rectangular plate; 17. Slide groove; 18. Movable groove; 19. Spring; 20. Clamping block; 21. N-pole actuating spring; 22. N-pole terminal; 23. Top rod; 24. Bimetallic strip; 25. Fixing plate; 26. Connecting plate; 27. Second bolt; 28. Locking block; 29. ​​Arc-shaped bend; 30. Fuse. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Referring to Figures 1-3, a specific embodiment of this utility model is provided:

[0036] A temperature controller with multi-level circuit protection includes a base 1 and a base 2. An L-polar conductive post 5 is connected to the base 1, and a socket 6 is connected to the bottom of the L-polar conductive post 5. The socket 6 has a slot 7 and a latch 8. A latching block 12 is connected to the latch 8, and a rubber ring 13 on the latching block 12 fits tightly with the latch 8. This design not only increases the connection's firmness but also prevents the plug 10 from loosening from the socket 6 due to vibration or shaking during equipment operation. A plug 10 is connected to the socket 6, and a pin 11 is connected to the plug 10. A bimetallic strip 9 is connected to the plug 10, and an L-polar terminal 14 is connected to the bimetallic strip 9. As the temperature continues to rise, the deformation of the bimetallic strip 9 gradually increases. When a set temperature threshold is reached, the bimetallic strip 9 separates from the L-polar terminal 14, cutting off the L-polar circuit and stopping the equipment from working, thus achieving temperature protection for the equipment. An N-polar conductive plate 15 is connected to the base 1. A rectangular plate 16 is connected to the bottom of the N-pole conductive plate 15. A spring 19 is connected to the rectangular plate 16. A clamping block 20 is connected to one end of the spring 19. This connection method ensures that the N-pole actuating spring 21 can maintain good electrical contact with the N-pole conductive plate 15 during normal operation, and facilitates disassembly and replacement when needed. The N-pole conductive plate 15 is connected to the N-pole actuating spring 21. The N-pole actuating spring 21 is connected to the N-pole terminal 22. A fixing plate 25 is provided above the base 2. Connecting plates 26 are connected to both ends of the fixing plate 25. A second bolt 27 is provided on the connecting plate 26. A double gold sheet 24 is provided on the fixing plate 25. A push rod 23 is connected to the double gold sheet 24. Through the transmission of the push rod 23, the deformation of the double gold sheet 24 can effectively act on the N-pole actuating spring 21, so that it can act in time when the temperature changes, cut off the N-pole circuit, and achieve dual protection against temperature. An arc-shaped bending part 29 is connected to the fixing plate 25. A fuse 30 is connected to the arc-shaped bending part 29.

[0037] Referring to Figures 4-6, the L-polar conductive post 5 is fixedly connected to the base 1, the socket 6 is fixedly connected to the bottom end of the L-polar conductive post 5, the plug 10 is movably connected to the socket 6, the pin 11 is fixedly connected to the plug 10, the plug 10 is fixedly connected to one end of the sheet bimetallic strip 9, and one end of the L-polar terminal 14 is movably in contact with the other end of the sheet bimetallic strip 9. This connection method ensures a stable and reliable connection of the L-polar circuit. The sheet bimetallic strip 9 can act promptly according to temperature changes to control the on / off state of the L-polar circuit. Slots 7 are respectively provided on the socket 6 and the plug 10. A latch 8 is fixedly connected to the socket 6, and a locking block 12 is movably connected to both the socket 6 and the plug 10. A rubber insert is fixedly provided on the locking block 12. Rubber ring 13 is movably connected to buckle 8. The rubber ring 13 increases the friction between buckle 12 and buckle 8, making the connection between plug 10 and socket 6 more secure and preventing loosening during use. N-pole conductive plate 15 is fixedly connected to base 1. One end of N-pole actuating spring 21 is movably connected to N-pole conductive plate 15, and the other end of N-pole actuating spring 21 is movably in contact with N-pole terminal 22. N-pole actuating spring 21 can deform when temperature or current changes, thereby controlling the on / off of N-pole circuit and protecting the circuit. Rectangular plate 16 is fixedly connected to N-pole conductive plate 15. Rectangular plate 16 is provided with sliding groove 17 and movable groove 18 respectively. Spring 1 9 is set in the movable slot 18. One end of the spring 19 is fixedly connected to the rectangular plate 16, and the clamping block 20 is fixedly connected to the other end of the spring 19. The clamping block 20 is slidably connected to the rectangular plate 16. The spring 19 and the clamping block 20 can clamp and fix the wires of the N-pole circuit to prevent the wires from loosening and ensure the stability of the circuit connection. The bottom end of the fixed plate 25 is fixedly connected to the snap-fit ​​block 28, which is movably connected to the double gold sheet 24. The double gold sheet 24 is fixedly connected to one end of the push rod 23, and the other end of the push rod 23 is in contact with the N-pole actuating spring 21. The double gold sheet 24 deforms when the temperature changes, and pushes the N-pole actuating spring 21 through the push rod 23 to realize the action of the N-pole circuit. The control is achieved by fixing the arc-shaped bending part 29 to the fixed plate 25, and movably connecting the fuse 30 to the arc-shaped bending part 29. One end of the fuse 30 is movably connected to the N terminal 22. The connecting plate 26 is fixedly connected to the fixed plate 25. The second bolt 27 is threadedly connected to the connecting plate 26 and the base 2 respectively. The fuse 30 serves as an overload protection device for the circuit. When the current in the circuit is too large, the fuse 30 melts, cuts off the circuit, and protects the equipment. The base 2 is threadedly connected to the first bolt 3, which is threadedly connected to the base 1. A contact port 4 is provided on one side of the base 2. The setting of the first bolt 3 makes the base 1 and the base 2 firmly connected. The contact port 4 facilitates the connection of external wires to the temperature controller.

[0038] Working Principle: During long-term use, components in the thermostat may become loose or experience poor contact. Disassembly, replacement, and repair are necessary. First, observe the connection between the locking block 12, socket 6, and plug 10. Disconnect the locking block 12 from socket 6 and plug 10. After removing the locking block 12, gently hold the plug 10 and smoothly disengage it from socket 6, separating them. At this point, the bimetallic strip 9 disconnects from the other parts of the L-polar circuit along with plug 10. Then, reinsert the new bimetallic strip 9 into socket 6 through plug 10, ensuring the pins 11 on plug 10 are accurately inserted into socket 6. Replace the locking block 12. The rubber ring 13 on the locking block 12 will tightly engage with the latch 8, ensuring a secure connection between plug 10 and socket 6. Next, locate the clamping block 20 on rectangular plate 16 and gently push it to overcome the spring force of spring 19, moving it along the movable groove 18 on rectangular plate 16. As the clamping block 20 slides, the pressure between the N-pole actuating spring 21 and the N-pole conductive plate 15 gradually decreases. When the clamping block 20 slides to a certain position, the N-pole actuating spring 21 will detach from the N-pole conductive plate 15. The old N-pole actuating spring 21 is removed from the connection between the rectangular plate 16 and the N-pole conductive plate 15. A new N-pole actuating spring 21 is selected, and one end of it is aligned with the slide groove 17 on the rectangular plate 16. It is carefully inserted into the slide groove 17 so that one end of the N-pole actuating spring 21 can slide freely along the slide groove 17. Then, the clamping block 20 is slowly released, and the spring 19 will return to its original deformation, pushing the clamping block 20 to slide back to its original position. The clamping block 20 will apply pressure to the new N-pole actuating spring 21, firmly fixing it to the N-pole conductive plate 15, ensuring good contact between the N-pole actuating spring 21 and the N-pole terminal 22, and that the N-pole actuating spring 21 can operate normally when the temperature or current changes.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A temperature controller with multi-level circuit protection function, comprising a base (1) and a base (2), characterized in that: An L - pole conductive column (5) is connected to the base (1). The bottom end of the L - pole conductive column (5) is connected to a socket (6). A slot (7) is formed on the socket (6). A buckle (8) is provided on the socket (6). A clamping block (12) is connected to the buckle (8). A plug (10) is connected to the socket (6). A pin (11) is connected to the plug (10). A sheet - type bimetallic strip (9) is connected to the plug (10). An L - pole terminal (14) is connected to the sheet - type bimetallic strip (9). An N - pole conductive plate (15) is connected to the base (1). The bottom end of the N - pole conductive plate (15) is connected to a rectangular plate (16). The rectangular plate (16) is connected to a spring (19). One end of the spring (19) is connected to a clamping block (20). The N - pole conductive plate (15) is connected to an N - pole actuating reed (21). An N - pole terminal (2) is connected to the N - pole actuating reed (21). Above the base (2), there is a fixing plate (25). Both ends of the fixing plate (25) are connected to connecting plates (26). A second bolt (27) is provided on the connecting plates (26). A bimetallic strip (24) is provided on the fixing plate (25). A push rod (23) is connected to the bimetallic strip (24). An arc - shaped bending part (29) is connected to the fixing plate (25). A fuse (30) is connected to the arc - shaped bending part (29).

2. A temperature controller with multi-level circuit protection function according to claim 1, characterized in that: The L - pole conductive column (5) is fixedly connected to the base (1). The socket (6) is fixedly connected to the bottom end of the L - pole conductive column (5). The plug (10) is movably connected to the socket (6). The pin (11) is fixedly connected to the plug (10). One end of the plug (10) is fixedly connected to the sheet - type bimetallic strip (9). One end of the L - pole terminal (14) is movably in contact with the other end of the sheet - type bimetallic strip (9).

3. A temperature controller with multi-level circuit protection function according to claim 1, characterized in that: The socket (6) and the plug (10) are respectively provided with the slot (7). The buckle (8) is fixedly connected to the socket (6). The clamping block (12) is respectively movably connected to the socket (6) and the plug (10). A rubber ring (13) is fixedly provided on the clamping block (12). The rubber ring (13) is movably connected to the buckle (8).

4. A temperature controller with multi-level circuit protection function according to claim 1, characterized in that: The N - pole conductive plate (15) is fixedly connected to the base (1). One end of the N - pole actuating reed (21) is movably connected to the N - pole conductive plate (15). The other end of the N - pole actuating reed (21) is movably in contact with the N - pole terminal (22).

5. The temperature controller with multi-stage circuit protection function according to claim 1, characterized in that: The rectangular plate (16) is fixedly connected to the N - pole conductive plate (15). A chute (17) and a movable slot (18) are respectively formed on the rectangular plate (16). The spring (19) is arranged in the movable slot (18). One end of the spring (19) is fixedly connected to the rectangular plate (16). The clamping block (20) is fixedly connected to the other end of the spring (19). The clamping block (20) is slidably connected to the rectangular plate (16).

6. A temperature controller with multi-level circuit protection function according to claim 1, characterized in that: The bottom end of the fixed plate (25) is fixedly connected to a snap-fit ​​block (28), the snap-fit ​​block (28) is movably connected to the double gold sheet (24), the double gold sheet (24) is fixedly connected to one end of the top rod (23), and the other end of the top rod (23) is in movable contact with the N-pole action spring (21).

7. A temperature controller with multi-level circuit protection function according to claim 1, characterized in that: The arc-shaped bend (29) is fixedly connected to the fixing plate (25), the fuse (30) is movably connected to the arc-shaped bend (29), one end of the fuse (30) is movably connected to the N-terminal (22), the connecting plate (26) is fixedly connected to the fixing plate (25), and the second bolt (27) is threadedly connected to the connecting plate (26) and the base (2) respectively.

8. A temperature controller with multi-level circuit protection function according to claim 1, characterized in that: The base (2) is threaded with a first bolt (3), which is threaded to the base (1). A contact port (4) is provided on one side of the base (2).

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